Bobbin-winding mechanism.



T. G. PLANT,

INDING MEGEEEIS'LE.

APPLICATION FILED QLIT. 8, 1908.

a" 4 QM;

Ema M1045! i no . THOMAS GUSTAVE PLANT, F BOSTON, MASSACHUSETTS.

BOBBIN-WINDING MECHANISM.

Specification of Letters Patent.

Patented Sept. 28, little}.

Application filed September 8, 1908. Serial No. 451,955.

To all whom it may concern:

Be it known that I, THOMAS GUSTAVE PLANT, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented an Improvement in Bobbin-lVinding Mechanisms, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

Tl1e invehti0n to be hereinafter described relates to machines-for winding thread and more particularly to waxed thread to be used in sewing certain portions of boots and shoes, the object of the invention being to provide simple and eliicient devices of this character and transmit heat tothe center of the thread mass mg means; Fig. 4

after the windin has that the waxed t read in properworking conas it is wound and been completed, so may be maintained dition and ready for-use as desired.

In the drawings, which illustrate one form or general embodiment of the invention,

I Figure 1 is a sectional front elevation of a windin mechanism, parts being broken away, snowing the present invention applied thereto; Fig. 2 is a front elevation lookin in the direction of the arrow from the le in Fig. 1; Fig. 3 is a detached detail of the driven member composing part of the drivis a detached'and broken away detail on a smaller scale and looking from the right in Fig. 1; and Fig. 5 is a detached detail of the bearing block for use in connectionwith'the heat conductor or conduit.

The frame A, which may be of any suitable construction, and preferably forms part of the frame work of a boot and shoe sewing machine, is provided with a bearing portion 1, in which is fixedly secured the sleeve 2, said frame A, if desired, being formed not, as preference may hollow and heated or dictate. Rotatably mounted Within the fixed sleeve 2 is the rotatable sleeve3 extending longitudinally therein. This rotatablesleeve 3 is preferably held within the fixedsleeve 2 by anti-friction bearings. In thepresent form of construction, such antifriction bearings at one end comprise balls 4 interposed between ashoulder 5 on the fixed that type for winding.

sleeve and the inclined end portion of the rotatable sleeve 3. The sleeve3 near its opposite end is provided with the seats (3 opposed to the end wall 7 of a cap 8 secured as by screw threads to the exterior of the fixed sleeve 2, anti-friction balls 9 being interposed between lhe'seat 6 and end wall 7. From the construction described it will be clear that while the sleeve 3 is held from longitudinal movement in the fixed sleeve 2, it is free to rotate therein on its anti'friction ball bearings.

Secured to one end of the rotatable sleeve 3, as by the screw threads 10, or otherwise, is the driving means 11, said driving means 'll being shown as a pulley about which passes the belt 12 leading from any source of power. The face of the driving means or pulley 11 is provided with a groove" 13 into which project, at suitable intervals, pins 14, said pins 14 being so disposed as to engage shoulders 15 on the driven means 16 which, in the present form of the invention, is shown .as a clutch member, having segmental portions 17 adapted to extend into the recess 13 in the pulley 11, the construction being such that when the member 16 is moved to the right in Fig. 1, the pins 14 and the shoulders 15 will be broughtinto engagement by rotation of the pulley 11,, and when said member 16 is moved to the left, F ig. 1, the said parts are placed in nonen aging or inoperative position.

assing longitudinally, through the rotatable sleeve 3 is the driving shaft 18 to which is fixed, as by a pin 19, the driven member 16 hereinbefore referred to. The shaft 18 at one end within the rotatable sleeve 3 is provided with a fixed collar 20, and a spring 21 surrounds the shaft 18, one end of the spring resting upon the collar 20 andv the other against the flange portion 22 adjacent the opposite end of the sleeve 3, the parts being so disposed and arranged that the spring 21 wilh normally tend to move the shaft 18 to the right, Fig. 1. Disposed between the rotatable sleeve 3 and the shaft 18 are the anti-friction bearings 23, 24, said hearings in the present form of the in vention being shown as anti-friction balls disposed between the sleeve 3 and said shaft 18. The shaft 18 is preferably provided with said Shaft.

said shaft endwise against the tension of the spring The free end of the start and stdpcontroller' 31'likewise has flanges 34, 34 adapted to emactuator 35, as indicated in with a portion to receive a bobbin or other thread carrier'25, said bobbin or thread carrier being clamped rotatablywith the shaft 18 and its driven member 16 by'means' of a cap 26 having'a. screw thread connection 27 Mounted in the machine frame ls the stop shaft 28 whichis provided atone portion thereof, adjacent the bobbin or thread oard riercg 2, with a thread contacting finger 29 and a 'finger piece 30. Near its opposite end, the stop shaft 28 is provided 'with a start and stop controller 3l-having a cam face 32, see Figs. 1 and 4, adapted to contact with the end 33 of the shaft 18 and move 21, when such start andvstop controller has its engaging or free end raised.

brace the square end of the shaft 18, as in dicated in Fig. 4, when the free end of the said controller is sufiiciently raised. Mounted onthe'machine frame, as indicated' in Figs. 1 and 4, is a controller actuator 35- pivotally supported at 36 and nor- .mally acted upon by asprin 37 to move the free exid of said actuator to 51 The controller 31 is provided with a pin 38 s e right, Fig. 4.

adapted to engage a receiving socket in the Fig. 4, when said controller: is in its lowered position, Fig. 4, the construction being such that when the partsare inposition as; indicated in ,Fig. -4,- the controller actuator 35 will,by means of itssocket engaging the'pin38, hold the start'and stop controller 31 in its lowered position, as indicated in Fig. 4. As heretofore stated, the part 29 which is adapted to engage'the wound mass of thread upon the bob in or thread carrier 25 when the fwi dmg is practically completed ,is

. mounted on the shaft 28 and, consequently,

' be positioned 'spring 21, be forced to the right, and'the driving and driven members 11 and 16, respectively, 'will be brought into operative engagement. At such time, the part 29 will to be out of contact with the thread bein wound but will contact with said 'threa when the .thread mass has reached the desired amount. At this time, the part 29 will be lifted, thereupon lifting the start and sto controller 31, and disen gage its pin 38 rom the notch in the con-' holler actuator 35. The edge 39, of the actuatoris formed inclined or curved, as im dicated in Fig. 4, terminating in a stop 40 and as soon as the pin 38 is disengaged from the holding notch, it will be engaged by the inclined or curved edge 39 of the actuator, which through the spring 37 will complete the lifting movement of the start and stop controller 31 and cause its cam 32 to move the shaft 18 to the left, thus disenaging the driving and driven members, and

its flanges 34 to engage the square edges of said shaft and stop rotation thereof. ,4s well known by those skilled'in the art,

the proper and convenient use of waxed thread in asewing machine r uires that such thread shall be heated. eretofore,

this heated conditionof the thread has been practically secured bybaking the bobbins after'they have been wound, such method being. open to the objections of non-uniformity in the heat distribution and the fact that a large number of bobbins were reuired. In the present form of the invention, means are provided to supply heat to the interior ofthe thread mass as it is wound and to maintain the thread mass suitably heated untilit is required for use, whereupon the operator has simply to remove the heated bobbin or thread carrier and place it or thread carrier being placed uponthe .in sewing position, another-or empty bobbin winding shaft 18 and the winding operation started by merely depressing the fingerpiece 30, all as will be Well understood.

In a prior application, .Ser. 'No. 406,618, filedDec. 16, 1907, means have been described and broadly claimed for supplying heat to the center of the thread mass as it is being wound or after it is wound, and in the present application claims are made only to features of improvement onv the broad invention as will appear.

As a convenient means to the center of the thread mass as and after it is wound, the driven or clutch member 16 is provided with a circular recess for supplying heat 41 as indicated in Figs. 1 and 3, and seated within this recess is a bearing block 42, said parts being preferably formed of metal, such bearing block having an exterior seat 43'for a heat conductor or conduit 44, which is.

preferably in the form of a lon flexible pipe connected at'its respective en s to-steam or other heatsupplying pipes 45 By this form of heat conductor or,conduit means,

the driven or clutch member 16 may be moved freely to the right and left with the bobbin driving shaft 18 without disturbing its connection with the source of heat supply, the flexibility of'the pipe 44 being sufiicient to permit-this movement. It .will be seen from Figs. 2 and 5 thatwhile the bearing block 42 is mounted upon the driven or clutch member 16, as hereinbefore stated,

and embraces said clutch member, it does not rotate therewith, thus furnishing a fixed the limitations of the details set forth and I mass.

' machine, and a heat conduit connected to "the thread, the combination of driven or clutch member 16 to the shaft 18 bin or thread carrier and the of thread ciosed, it is to be understood that said" inbearing surface for the heat conductor or conduit 14. Obviously, heat supplied to the conductor or conduit will be transmitted through the bearing block and hub of, the

and from it direct to the center of bob- Wound or being wound I thereon.

5 While the above 1s well adapted a good, practical form of the invention herein CllS- vention is not restricted or circumscribed by thatvarious changes may be made within the true field of the invention as hereinafter defined by the claims.

Claims:

1: Ina .mschine for winding thread, the combination of a supporting frame, means on which the thread is wound supported by said-frame, driving means for said winding machine, and means independent of the supporting frame for transmitting heat primarilyihrough the means upon which the thread-ispwonnd tot-he center of the thread 2. Ina machine for winding thread, the combination of a supper lag frame, means on which the thread is wound supported by said frame, driving means for said winding means on which the thread wound and formed independent the supporting frame for transmitting heat primarily to the center of the thread mass.

In a Winding machine winding supporting frame, means u'on which the thread, is wound support in said frame, driving means for said winc ing machine, a conduit or heat conductor leading from a source of heat supply, and connections between the conduit or heat conductor and the means a Jon which the thread is wound independent 0 said supporting frame for transmitting heatto the interior of the thread mass.

thin a winding machine for winding thread, the combination of a supporting frame, a bobbin or thread carrier on which the thread is wound, winding means for winding the thread on said bobbin or thread carrier, and conduitformcd independent of the supporting frame for transmitting heat through said bobbin or thread carrier primarily to the center of the thread mass.

5, In a avinding machine for winding thread, the combination of a supporting frame, means upon which th thread is wound, driving means for said winding machine comprising a shaft. and a heat cork duit formed independent of the supporting frame leading from a source of heat supply thread, the combination of to said shaft for transmitting heat through said shaft to the center of the thread mass,

Q. in winding machine for winding 3 thread, the combination of a supporting frame, a bobbin or thread carrier on which the thread is wound, driving means for said winding machine, means for stopping the winding operation when the. desired amount of thread has been wound on said bobbin or thread carrier, and a heatconductor or con duit formed independent of the supporting frame leading from a source of heat supply for transmitting heat primarily through said bobbin or thread carrier to the center of the thread mass to maintain the thread mass at the desired temperature both during and after the winding operation.

7. In a winding machine for winding thread, the combination of a supporting frame, means upon which the thread 1S wounfd, driving means for said winding mil-- chine, starting and stopping mechanism for the driving means, and a heat conduit other than the supporting frame for transmitting heat primarily to the center of the thread mass during the operative condition of the Winding means and after the winding operation has ceased.

'8. In a winding machine for winding means upon which the thread is wound, driving means for said winding machine, a heat conductor or conduit leading from a source of heat supply to transmit heat to the center of the thread inass,anda bearing block interposed between said conduit or conductor and the means on which the thread is wound.-

9. In a winding machine for Winding thread, the combination of a bobbin or thread carrier, winding means for said bobbin or thread carrier, driving means for said winding means,'a heat conductor or conduit leading from a source of heat supply to said winding means, and a stationary bearing block interposed between the conductor or conduit and winding means to afford a hearing for such conductor or conduit.

10.111 a winding .machine for Winding thread, the combination of a supporting frame, winding means supported by said frammdriving means including clutch members, means for moving said clutch members into and out of operative relation, and a heat conductor or conduit leading from a source of heat supply and connected to one of said clutch members to transmit heat to the thread mass.

11. In a winding machine for winding thread, the combination of a supporting frame, a shaft 18 supported thereby, a bobbin or thread carrier adapted to be connected operatively with said shaft, driving means for said shaft, and a conductor or conduit 44 leading from a source of heat supply and passing about said shaft to transmit heat to' the center of the thread mass.

12. In a winding machine for winding thread, the combinationv of a supporting fraine, a shaft, as 18, supported thereby, a. In testimony whereof, I have'signed my bobbin or thread carrier adapted to be opname to this specificatiomin the presence of eratively connected to said shaft, a loose two subscribing witnesses.

clutch member 11, a fastrclutch member 16, THOMAS GUSTAVE PLANT. 5 fund a heat conductor or eonduit 44 con- Witnesses:

nested to said fast clutch member to trans- IRVING U. TOWN/SEND;

mit heat thereto. ARTHUR W. CALvnR. 

